Especially in volatile markets like this one. 

I agree, these can be a great way to get access to more real estate investments and/or diversify retirement portfolios away from more volatile or poorer performing assets.

At first I tried doing stocks for a while but I realized that stocks are VERY volatile and learned a couple of lessons the hard way.

Crypto is a volatile asset, but the rewards are magnitudes higher than any other traditional investment.

Starting small and paying down debt can create debt-free cash flow and reduce market volatility.

Consider starting with a few lower-cost flips with a smaller loan-to-value ratio to reduce financial strain.Market Research: Sacramento can be volatile, so I’d recommend keeping a pulse on local trends—particularly in the neighborhoods that have potential for growth but haven’t quite hit their peak yet.

Most of the REITs are classified as Micro as to size and have great volatility in pricing and net asset value adjustments.  

That includes recent sales as well as currently listed properties in the direct vicinity.Given there are so many distressed sales in Detroit on the same blocks as flips and nicely renovated homes, the Zestimate simply can't parse through the volatility of prices. 

It is a very volatile industry and its experiencing diverging trends.

I know that the general guidance is that emergency funds aren't to be invested, but given our financial security and the fact that we already have a personal e-fund in a safe, non-volatile location, would it still be crazy/unwise to invest this 15k in an S&P500 index fund in a brokerage?